Oven-tray stabilizer



Dec 1, 1942- w. P. SCHONWALD OVEN-TRAY STABILIZER Filed Dec. 9, 1939 M d w A0 ww Wm ATTORNEY stented Een. l, l

` ,initie @WN-TRAY ST Willie@ E?. Sehonwald, New Haven, Conn., assignvcan Machin .s corporation oi New .l

e & Foundry Company, ersey Appicettion mbe? 9, 1939, Serial No. 308,381

'I C 11,; its.;

This invention relates to ovens and more par'- ticulsrly to improvements in stabilizers for the trays carried by the conveyors thereof. Such conveyors are usually equi with trays trunnioned on endless conveyor ch which run over sprockets. To maintain the trays in e horizontal position they are -cusrlly equid with cam followers by straight runs or tracks between 'the sprockets and curved tracks engaging the followers es the trays poss oround the sprockets. Thus the cam follower is engaged by a track on one side ond e. com or track'on the other side whereby beck-lash end H w the tray results to the detriment of the g lbeing baked on the troy. An object oi the invention, therefore, is to prevent im trays while main them in o horizontal position.

ro schiere uns obiect in the present mven' tion, the trays may be hung irom the conveyor chains eccentrlcalhf, end' with e. follower on horizontal tracks, one for the upper and one for the lower run as the tray .wie from sprocket ze.

A further obiect of the invention is, by proper contouring or the cem control the supporting elements, to cause the trays to ya, or dip for unloading. with these and other objects not specifically mentioned in view. the invention con sists in certain constructions and combinations hereinafter fully described and then specilcally set forth in the claims hereunto appended.

.es toe trays are mounted in euch e manner that their followers nomelly tend to move downwerd, the supporting elements thus prevent this downward movement during 'trer end hold the trays in their stebilized, lioricontsl position Since the stabilizing arms are gravity-hissed in one direction, there is no beck-Isch es results when the tray stabilizing element is ilrst engaged by a track on one side and then by e cem or treck on the other side, thus preventing shekiug of the trays and consesnent possible to their contente.

In the accompanying drawing which toxins s "rf tray ls provided- (Cl. 1&8-158) port of this specicaton and in which like char-- actors of reference indicate the same or like parts: A Fit. l is aside elevation of one end of an oven-tray conveyor equipped with my improved stabilizing mechanism;

Fig. 2 is o plan view of the same; and l Fig. 3 is a sectional side elevation on line 3- of Fig. 1, in enlarged scale.

Referring to the drawing, the endless rolle 'v chain conveyors 5 which carry the oven-trays Spass around sprockets 'l on shafts 8 supported ln bearings 9, the rollers I0 on the pins connecting the links of the chains being supported at their straight runs by upper and lower rails il and i2. The trays are equipped with trunnlons l located at one side of the center of the trays which are thus suspended 'at spaced intervals from the chains 5, and the trunnions carry rollers le resting on the rails il and i2, on one trunnion of each tray is mounted a horizontal f arm or follower I5 carrying a roller I6 turning et; In mssj ing around the sprockets, the followers es they on e. stud il in the free end of the arm. The

rollers i5 rest on upper and `lower rails I8 andV le and thereby hold the trays t, which would otherwise swing downwardly, in their horizontal position velong the straight runs of the chains l. As each roller le runs off the upper rail lil, it is engaged and supported by one of a. number o! spaced cup-shaped elements Z6 pivotally mounted in a ring 2i rotating in unison with the sprocket i about en axis eccentric thereto. f The ring 2i has a series of equally spaced sock` ets 22 which carry pins 23 connected to pins 24' oori'y rollers 3l running in the track of aste-.-v

tionary com 32. The shape of said com track is such that et position I, adjacent the endof track Se, the cup 2c will have been turned from sn inverted position to a position wherein itis 45 out of the horizontal position to receive and uphold the roller I6. on the arm i5 of the incorn-` ing tray, and the cup will then be gradually turned to s horizontal position at II, and then forwardly 45 from horizontal position to lthe i position et 1E, adjacent to rail IS. After the roller it moves onto the outgoing rail i9, e. lobe 

